Arthur Whitney's K is by many measures one of the most powerful programming languages .
K.CoSy turns it into an interactive "NoteComputing" environment .

CoSy "Turn on and Use" Note-Computing Environments
Customized with K.CoSy.Kdb supply Individuals
and Groups who earn their living thru analytical thought
with the most powerful tool for realizing those thoughts on data of any scale .

Already using Kdb ? You've got to see the immediacy and flexibility of CoSy as your IDE and interface for your most sophisticated End Users . get info

Y K ? 0 : STRUCTURE Why have I moved from ancient flat APL , skipping the great modern
nested APLs , all the way to the youngest , most independently minded
evolute of this language family ? What are differences , the pros
and cons of K versus other APLs and Ken Iverson's own evolute J ?
more ...

If you are in the NYC Metro area , drop me a note let me give you a demo . See unmatched power of this lingistic style of computing -- Bob A

" So well done, CoSy has stimulated me into trying to learn K "

Old flat APL CoSy ( blue )
in front of neonatal K.CoSy

After 17 years living in my CoSy "notecomputing" environment created in
STSC's flat APL+PC , I have since Thanksgiving 2000 created a similar
working and programming environment in Arthur Whitney's K language and
its tightly coupled GUI . ( See http://Kx.com )

Already K.CoSy provides an extremely productive workspace like
environment previously impossible in K which is itself one of the most
expressive and perhaps the fastest language yet created .

Among my uses of K.CoSy is the preprocessing of these web
pages with a small vocabulary I have constructed to allow embedding of
arbitrary K expressions in my HTML . ( View the source of this page for a couple of examples of embedded K . )

If you have an interest in exploring K , K.CoSy's open
definitions , interactivity , and memory of every thing you do ,
greatly ease the task .
The only silver lining to the horrendous disk crash I suffered mid June is that reconstructing from scratch , the code is much cleaner and more mature .

Caution : K and K.CoSy must be considered eXtreme programming environments .
If that appeals to you , prepare to be amazed . If not , K and K.CoSy may be totally inscrutable to you . ( move cursor on pik to see title comment )

Here is what you see when you click "click to start" opening K.CoSy .

Click .CoSy.text to see the whole contents of the variable `text when you first load the current version K.CoSy .

These should give you a flavor of the open nature of K.CoSy and a glimpse of its broad utility .

Klik to see Help on the defined Keys in `text .

#Subscribe K.CoSy , being young and developing open code , lends itself to offer by subscription .
SORRY , charter subscriptions have done their job and are a thing of the past . Please contact us directly about integrating CoSy into your business life .

Charter subscriptions are available for just $30 . Subscription
includes access for one year to the source files in the protected
MEMBERS directory and the ability to post to the group ( and , of
course , to ask me any usage and technical questions . . Current members of the CoSy/Notecomputing group are automatically Charter Subscribers with full access privileges .

To become a member of CoSy and experience its extreme simplicity :

Go to Kx.com and
download a copy of K ( or Kdb which includes K ) . Download their docs
too ; CoSy assumes you know or want to learn K . CoSy does a lot to
tame K , but you will see what a wild mindmeld Arthur has condensed .

Subscribe to K.CoSy NoteComputing Language Pool .

Drop me an email
or give me a call letting me know you are writing a check .